Home ยป For what value of x is the expression x – 5/x2 – 2x – 3…

For what value of x is the expression x – 5/x2 – 2x – 3…

For what value of x is the expression

x – 5/x2 – 2x – 3

not defined?

  • A.
    3, 1
  • B.
    -1, -3
  • C.
    -1, 3
  • D.
    3, -2
  • E.
    1, -3
Correct Answer: Option C
Explanation

x2 – 2x – 3 = 0
x2 – 3x + x – 3 = 0
x(x – 3) + (x – 3) = 0
(x + 1)(x – 3) = 0
x = -1 or 3